This is IP2Location Ruby library that enables the user to find the country, region, district, city, coordinates, zip code, time zone, ISP, domain name, connection type, area code, weather, MCC, MNC, mobile brand name, elevation, usage type, address type, IAB category and ASN that any IP address or hostname originates from.
Why do you think that https://github.com/ip2location/logstash-filter-ip2location is a good alternative to ip2location-ruby